Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/3732#discussion_r22922237
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
---
@@ -253,7 +250,7 @@ case class Cast(child: Expression, dataType: DataType)
extends UnaryExpression w
// Converts Date to string according to Hive DateWritable convention
private[this] def dateToString(d: Date): String = {
--- End diff --
if Date already has a good toString implementaiton, maybe you can remove
this function entirely?
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